Home / 13,988.06-19,302.80-7,699.22

Finding the Fourth Proportional to 13,988.06, 19,302.80 and 7,699.22

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Solution

The fourth proportional to 13,988.06, 19,302.80 and 7,699.22 is: 10,624.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.06 : 19,302.80 = 7,699.22 : x
  2. Step 2: Convert to fraction form
    13,988.06/19,302.80 = 7,699.22/x
  3. Step 3: Cross multiply
    13,988.06x = 19,302.80 × 7,699.22
  4. Step 4: Simplify right side
    13,988.06x = 148,616,503.82
  5. Step 5: Solve for x
    x = 148,616,503.82/13,988.06
  6. Step 6: Final answer
    x = 10,624.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.